--- product_id: 203519949 title: "NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit – 1.36 kg of Rough Gemstones and Rocks for Tumbling Including Amethyst and Quartz – Rock Tumbler Supplies Include Rock Tumbler Grit" brand: "blue marble" price: "71.83 DT" currency: TND in_stock: false reviews_count: 13 url: https://www.desertcart.tn/products/203519949-national-geographic-rock-tumbler-refill-kit-1-36-kg-rough store_origin: TN region: Tunisia --- # 9 unique gemstone varieties 4 jewelry fastenings included 4-step grit polishing system NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit – 1.36 kg of Rough Gemstones and Rocks for Tumbling Including Amethyst and Quartz – Rock Tumbler Supplies Include Rock Tumbler Grit **Brand:** blue marble **Price:** 71.83 DT **Availability:** ❌ Out of Stock ## Summary > 💎 Turn Rough into Remarkable – Your Gemstone Journey Starts Here! ## Quick Answers - **What is this?** NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit – 1.36 kg of Rough Gemstones and Rocks for Tumbling Including Amethyst and Quartz – Rock Tumbler Supplies Include Rock Tumbler Grit by blue marble - **How much does it cost?** 71.83 DT with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/203519949-national-geographic-rock-tumbler-refill-kit-1-36-kg-rough) ## Best For - blue marble enthusiasts ## Why This Product - Trusted blue marble brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Create Custom Jewelry Like a Pro:** Includes necklace, earrings, keychain, and ring fastenings to showcase your polished masterpieces. - • **STEM Learning Meets Hands-On Fun:** Comes with an engaging guide packed with fascinating gemstone facts to fuel curiosity and creativity. - • **Transform Rough Rocks into Dazzling Gems:** Master the art of tumbling with 1.36 kg of diverse raw gemstones including Amethyst and Quartz. - • **Trusted Quality from National Geographic:** Backed by a 4.6-star rating and satisfaction guarantee—perfect for aspiring geologists and makers alike. - • **Precision Polishing with Four Grit Grades:** Coarse to polish—achieve museum-quality shine with every step of the tumbling process. ## Overview The NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit offers 1.36 kg of nine distinct rough gemstones, including Amethyst and Quartz, paired with a four-stage grit system to polish stones to perfection. Designed for ages 8+, it includes jewelry fastenings and an educational guide, blending STEM learning with creative craftsmanship. No batteries required, this kit is a top-rated, hands-on experience for gemstone enthusiasts and DIY jewelry creators. ## Description Product Description National Geographic Gemstone Mix Rock Tumbler Mega Refill Pack aplus content video Keep the fun rolling with this 1.36 kg refill pack of raw gemstones including tiger’s eye, amethyst, aventurine, rose quartz, red jasper, agate, sodalite, Dalmatian jasper, and black jasper, along with 12 polishing grit packets and 5 settings for making wearable jewellery with your tumbled gems! 1.36 kilograms of raw gemstones, polishing grit, jewellery settings, and more! The National Geographic Mega Gemstone Mix Refill Kit includes an astounding 1.36 kilograms of unpolished gemstones along with everything you need to make the stones shine! This Gemstone Refill Kit Includes 9 types of raw gemstones (1.36 kg total) 4 courses of polishing grit 5 jewellery fastenings 1 full-colour Learning Guide This is the ultimate rock tumbler refill kit for tumbling enthusiasts. You receive an incredible array of gemstones including tiger’s eye, amethyst, aventurine, rose quartz, red jasper, agate, sodalite, Dalmatian jasper, and black jasper. Plus, the 12 polishing grit packets allow for three complete rock polishing cycles with any rock tumbler. And a detailed Learning Guide provides tumbling instructions along with fascinating facts about all the stones in the kit. This truly is a one-stop refill kit, packed with a wide-ranging variety of gemstones. Order today! We make the highest quality hands-on science toys, and all products are backed by exceptional service. With a mission to inspire people to care about the planet, the National Geographic Society is one of the world's largest nonprofit scientific and educational organizations. Review: Nice 👍 - Kids loved it. Look great after the after out of the polisher Review: Perfect present - Granddaughter loves this ## Features - Warning:Not suitable for children under 8 years. For use under adult supervision - GEMSTONES OF NINE VARIETIES: Tiger’s Eye, Amethyst, Aventurine, Rose Quartz, Red Jasper, Agate, Sodalite, Dalmatian Jasper, Hematite (1.36 kg total) - FOUR GRADES OF GRIT: Coarse, Medium, Fine, Polish. Transform your stones from rough rocks to dazzling gemstones! - JEWELLERY FASTENINGS: 1 Necklace, 1 set of Earrings, 1 Keychain, 1 Ring. Create custom jewellery from your newly polished gemstones! - LEARNING GUIDE: Our learning guide will teach you all about these unique gemstone specimens and includes many amazing and fascinating facts - SATISFACTION GUARANTEED – The National Geographic STEM series provides kids high-quality educational toys that are a whole lot of fun! If your experience is anything less than extraordinary, let us know so we can make it right for you ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07H7WFWYT | | Age Range Description | 8 years and up | | Best Sellers Rank | 169,595 in Toys & Games ( See Top 100 in Toys & Games ) 1,582 in Educational Science Kits | | Brand Name | Blue Marble | | Colour | Red | | Customer Reviews | 4.6 out of 5 stars 1,634 Reviews | | Educational Objective | STEM | | Global Trade Identification Number | 00816448025914 | | Is Assembly Required | No | | Item Dimensions | 13.6 x 13.5 x 13.8 centimetres | | Item Weight | 1.36 Kilograms | | Manufacturer | JMW Sales, Inc. | | Manufacturer Part Number | NGGEMREFILLMEGA | | Material Type | Gemstones | | Maximum Age Recommendation | 1188.00 | | Minimum Age Recommendation | 96.00 | | Model Number | NGGEMREFILLMEGA | | Operation Mode | Manual | | Size | 3 pounds | | Sub Brand | National Geographic | | Subject Character | Gemstones | | Supported Battery Types | No batteries required | | Theme | Nature | | UPC | 816448025914 | | Unit Count | 1.0 count | ## Product Details - **Brand:** Blue Marble - **Age range (description):** 8 years and up - **Colour:** Red - **Theme:** Nature - **Cartoon character:** Gemstones ## Images ![NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit – 1.36 kg of Rough Gemstones and Rocks for Tumbling Including Amethyst and Quartz – Rock Tumbler Supplies Include Rock Tumbler Grit - Image 1](https://m.media-amazon.com/images/I/A1+omj2TEGL.jpg) ![NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit – 1.36 kg of Rough Gemstones and Rocks for Tumbling Including Amethyst and Quartz – Rock Tumbler Supplies Include Rock Tumbler Grit - Image 2](https://m.media-amazon.com/images/I/81y6ACT6x7L.jpg) ![NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit – 1.36 kg of Rough Gemstones and Rocks for Tumbling Including Amethyst and Quartz – Rock Tumbler Supplies Include Rock Tumbler Grit - Image 3](https://m.media-amazon.com/images/I/81pQlq9cMFL.jpg) ![NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit – 1.36 kg of Rough Gemstones and Rocks for Tumbling Including Amethyst and Quartz – Rock Tumbler Supplies Include Rock Tumbler Grit - Image 4](https://m.media-amazon.com/images/I/81EFDXI1rfL.jpg) ![NATIONAL GEOGRAPHIC Rock Tumbler Refill Kit – 1.36 kg of Rough Gemstones and Rocks for Tumbling Including Amethyst and Quartz – Rock Tumbler Supplies Include Rock Tumbler Grit - Image 5](https://m.media-amazon.com/images/I/91VEdAvXVsL.jpg) ## Questions & Answers **Q: Can you make seaglass with it?** A: Yes, you can make sea glass in our tumbler. Please keep in mind you won't want to use anything less than 1/4" thick, as it will just crumble and not tumble. **Q: Does it come with a rock tumbler machine** A: No, our Mega Refill kit does not include a rock tumbler. Our tumbler is sold separately. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Nice 👍 *by K***N on 27 February 2026* Kids loved it. Look great after the after out of the polisher ### ⭐⭐⭐⭐⭐ Perfect present *by A***A on 14 June 2025* Granddaughter loves this ### ⭐⭐⭐⭐ Some rocks tiny chips *by A***R on 1 October 2025* Good value for money. Only issue is 500+g was chips too small. Will wear away in the tumbler or produce tiny chips. Otherwise we love NAT geo products. The grits good. Got 41 tumble able pieces. ## Frequently Bought Together - National Geographic Rock Tumbler Refill Kit – 3 lbs. of Rough Gemstones and Rocks for Tumbling Including Amethyst and Quartz – Rock Tumbler Supplies Include Rock Tumbler Grit and Jewelry Accessories - National Geographic Rock Tumbler Kit – Hobby Edition Includes Rough Gemstones, and 4 Polishing Grits, Great STEM Science Kit for Geology Enthusiasts, Rock Polisher for Kids and Adults - Blue Marble National Geographic Rock Tumbler Grit and Polish Refill Kit - Tumbling Grit Media, Polish Up to 20 lbs. of Rocks, Works with Any Rock Polisher, Rock Tumbler Supplies --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/203519949-national-geographic-rock-tumbler-refill-kit-1-36-kg-rough](https://www.desertcart.tn/products/203519949-national-geographic-rock-tumbler-refill-kit-1-36-kg-rough) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-29*